Here you can find the source of slice(T[] array, int index, int length)
| Parameter | Description |
|---|---|
| array | The array to be sliced. |
| index | The zero-based start index of the subset; supports ruby-style reverse indexing where, for example, -1 is the last item and -2 is the second last item in the array. |
| length | The desired length of the slice; supports negative lengths for slicing backwards from the end of the array. |
| T | The class of the items stored in the array. |
public static <T> T[] slice(T[] array, int index, int length)
//package com.java2s; /*/* w w w .j ava 2 s .c o m*/ * The MIT License (MIT) * * Copyright (c) 2015 Lachlan Dowding * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ import java.util.Arrays; public class Main { /** * Returns a new array which is a subset of elements from the given array. * * @param array The array to be sliced. * @param index The zero-based start index of the subset; supports ruby-style reverse indexing where, for example, * -1 is the last item and -2 is the second last item in the array. * @param length The desired length of the slice; supports negative lengths for slicing backwards from the end of * the array. * @param <T> The class of the items stored in the array. * @return A new array which is a subset of the given array taken at the desired index for the desired length. */ public static <T> T[] slice(T[] array, int index, int length) { if (array == null || array.length == 0) return array; // support reverse/tail length if (length < 0) length = array.length + length; // support reverse/tail indexing if (index < 0) index += array.length; // don't slice past the end of the array if ((length += index) > array.length) length = array.length; return Arrays.copyOfRange(array, index, length); } }